The Orthopedic Memory Foam Dog Bed is sometimes referred to as a memory foam mattress.
Orthopedic foam is made of open-cell polyurethane silicone plastic. The plastic is good at distributing weight and pressure evenly, which makes it an excellent shock absorber. This material is used exclusively by NASA because of its ability to withstand high Absorbs pressure-protected aircraft during impact landing. The foam returns to its original shape even when compressed to 10 percent of its normal size. In the early days, memory foam didn't hold up well after many uses, but the development of this technology has greatly improved its longevity.